Dierich Mark Kaiser, MD
NPI 1205990256ActiveIndividual· Psychiatry & Neurology, Psychiatry· Harrisburg, PA
Psychiatry & Neurology, Psychiatry (MD) with Western Tidewater Community Mental and 1 other group, practicing in Harrisburg, Pennsylvania. Their prescriptions cost Medicare Part D more than their services did: $376,451 for 3,172 claims, against $31,147 paid for services in 2024.
Overview
| NPI | 1205990256 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 21, 2006 |
| Last updated in NPPES | May 14, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | MD445541 | PA |
| Psychiatry & Neurology, Psychiatry | 2084P0800X | D0058359 | MD |
| Psychiatry & Neurology, Psychiatry | 2084P0800X | MDD30059 | DC |
| Psychiatry & Neurology, Psychiatry | 2084P0800X | 0101055431 | VA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Psychiatry (PA); Practitioner - Psychiatry (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 86 |
|---|---|
| Services billed | 410 across 9 procedure codes |
| Paid by Medicare | $31,147 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,172 · 3,480 30-day fills |
|---|---|
| Patients | 140 |
| Total drug cost | $376,451 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 1992 |
|---|---|
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Medical groups
- Western Tidewater Community MentalSuffolk, VA · 21 clinicians
- Hispanic Community Counseling ServicesPhiladelphia, PA · 6 clinicians
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 47 psychiatrists in Harrisburg · All psychiatrists in Pennsylvania